Improvement in turbine water-wheels



y 3Sheets-Shee-t3. l. B. MCURMICK LS. BRUWN.

. Turbine Water-wheels. N'o.l54,698.v Patented sept.1,1874.

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UNITED STATES PATENT OFFICE.-

JOHN B. MCOORMIOK, OF INDIANA COUNTY, AND JAMES L. BROWN, OF

v BBOOKVILLE, PENNSYLVANIA. l

IMPROVEMENT IN TURBINE WATER-WHEELS.

Specification forming part of Letters Patent No. 154,698, dated September 1, 1574; application filed June 30, 1874.

' To all whom it may concern:

in the county of Jefferson and State of Pennsylvania, have invented certain new and useful Improvements in Turbine Water-Wheels; and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use it, reference being had to the accompanying drawings, which form part of this specification.

Figure I is a top view of the gate arrangement in connection with the guide wheel closed. Fig. II is a partial view of the'same with the gate open, showing the subdivision in the guide-Wheel. Fig. III is a partial view of the same with the gate open to twothirds of the full power. Fig. IV is a partial view of the same open to its full gatage, showing all the subdivisions. Fig. V is a bottom view of the water-wheel, showing the arrangement of the buckets. Fig. VI is a transverse sectional AView embodying our invention, through line .r

x, Fig..I. Fig. VII shows the bucket bl of the guide-wheel and bucket d2 of the water-wheel. The concave discharge-surface of bucket d2 is also shown in ,this figure. Fig. VIII lis an edge view of the ends of the same.

The gate A is divided into four cut segments or openings, enlarged so as to cover or expose one or more of the chutes or subdivisions in the guide-wheel. The gate is operated by the cog-wheel C, which meshes into the cog-sector a on the rim of the gate. The rim -of the guide -wheel B is bellshaped, having the larger circumference at the top. The bellcrown b of the guide-wheel serves as a guide for the shaft of the Water-wheel, as shown in Fig. VI. This guide-wheel has openings for -the passage of the water, corresponding to the openings in the gate, which openings are subdivided, by partitions b1, into three parts,

which may be further divided into six parts, if desired. These subdivisions b2 have Haring sides, presenting the larger opening at the top, and, by their peculiar shape, compress the the bottom, and the inverted bell-crown form of the hub d, and the peculiar form of the buckets d2, as shown in Fig. VII, by their combination and arrangement in the Waterwheel, form the best opening for the passage of the water from the point of hit on the buckets of the water-wheel to the point of dis charge, and permit the wheel D to deliver itself free from all friction after it has received the full force of the solid columns of Water.

Having thus fully described our invention, We claim- 1. The bucket d2, having the curved edges and the concave discharge-surface, as shown in Fig. VII, in combination With the bellshaped rim d1 and bell-crown-shaped hub d, to

form a constantly-enlarging opening for dischargingV the Water, so as to permit the wheel to free itself therefrom without loss by friction, as shown and described.

2. The subdivisions b2, formed by partitions b1 inthe guide-Wheel B, having the bell-shaped sides shown, in combination with the gate A,

having enlarged openings, substantially as 

